Gasolene-burner.



, No. 739,144. P'AT'ENTED SEPT. 15, 1903.-

- A. J. BLAOKFORD. I

GASOLENE BURNER."

APPLICATION FILED MARIM. 1903.

' N0 MODEL.

UNITED STATES Patented September 15, 1903.

PATENT OF IcE.

ATWVELL J. BLACKFORD, OF CLEVELAND, OHIO, ASSIGNOR TO AMERICAN STOVECOMPANY, OF JERSEY CITY, NEW JERSEY, A CORPORATION OF NE\V JERSEY.

GASOLENE-BU RN ER.

SIECIFIGATION forming part of Letters Patent No. 739,144, datedSeptember 15, 1903.

Application filed March 14,1903- To all whom it may concern.-

Be it known that I, ATWELL J. BLACKFORD, a citizen of the United States,residing at Cleveland, in the county of Cuyahoga and State of Ohio, haveinvented new and useful Improvements in Gasolene-Burners, of which thefollowing is a specification.

My invention relates to improvements in gasolene-burners, and pertainsto that class of burners in which the gasolene is vaporized orevaporated in the presence of atmosphere and fed by gravity through atube to the lower end of the burner, the upper end of the burner beingprovided with a collecting-hood which is connected with the point ofevaporation through themedium of a hot-air-conducting pipe. In this formof burner in order to enable it to be used successfully it has beennecessary to provide what is known as a subfire-burner at the lower endof the burner-tube proper.

In a burner constructed as just described it requires considerable timeto obtain a normal or full-sized flame, owing to the fact that it cannotbe produced until the burner has become sutiiciently heated at its upperend to radiate heat for the air in the collectinghood to be conductedtherefrom to the point of evaporation. Especially is this true when thetemperature of the room in which the stove is being operated is cold. Inthis class of burners the heat produced by the subfire is of nopractical importance in assisting to produce a normal flame in theburner proper, but only serves to radiate heat at the lower end of theburner-tube, and thus prevent condensation of the evaporated vapor atthat point; also, in the operation of burners of this kind the subfireis lighted practically concurrently with the lighting of the main burneror fire, and the heat produced thereby passes out through the centraltube of the burner proper.

The object of my present invention is to provide means whereby theheated air from the subfire is directly conducted into thehotair-conducting tube,and thereby directly con ducted to theevaporating or vaporizing point, whereby warm air is practicallyinstantaneously furnished at the vaporizing-point when the burner islighted and which is found to produce a normal or full-sized flameseveral Serial No. 147,772. (No model.)

minutes earlier than in a burner not provided with this directheat-conducting means from the subfire.

The accompanying drawing is a vertical sectional view of a burnerembodying myinvention.

-Referring now to the drawing, 1 indicates the burner proper, 2 theouter burner-tube, and 3 the inner or central burner-tube.

Surrounding the upper end of the outer burner-tube 2 and located belowthe burner 1 is a heat-collecting hood 4, and this heatcollectinghood 4is connected, through the medium of a tube 5, with the evaporator 6, andthe evaporator is connected with the outer burner'tube 2 at its lowerend by a tube 10 and furnishes the vaporized or evaporated gasolenemixed with the proper quantity of air, which passes upward to the burner1, where it is lighted.

Situated within the lower end of the burner 2 is a subfire-burner 7, andin the ordinary construction of stoves of this character the burner isformed directly in the Wall of the inner or central tube 3 in a mannerwell understood by those skilled in the art.

' Thus far I have described the ordinary form of burner and will nowproceed to describe my improvement.

My improvement consists in connecting the subfire 7 by means of a tubedirectly with the heat-conducting tube 5, and, as here shown, I makethis connection through the medium of the central tube 3 and thelaterally-extending tube 8,which connects with the upper portion of thecentral tube and passes through the outer burner-tube 2 and through theheat-collecting hood 4 directly into the heat-conducting tube 5. Fromthis description and as indicated by arrows it will be seen that theheat produced by the subfireburner 7 is directly conducted into theheatconducting tube 5 and immediately conducted to the evaporator 6. Inthe operation of burners of this character the subfire (as previouslystated) is lighted practically concurrently with the lighting of themain fire or burner 1 in a manner well understood by those skilled inthe art, and hence heat is immediately conducted from the subfiredirectly to the evaporator 6 without the necessity of waiting until thehood 4 at the upper end of the burner becomes sufliciently heated tofurnish hot air in the usual way to the evaporator, and thus verymaterially shorten the time required to produce a normal or full-sizedmain flame at the burner 1. As well known in this class of burners, whenthe burner 1 is first lighted it.flickers and produces very little heat,and hence considerable time is required to heat up the burner and toheatitsufticiently to furnish sufiicient warm air through the medium ofthe hood 4 to the evaporator 6. By connecting the subfire directly withthe evaporator, as here shown, the burner will work to produce a normalflame very quickly as compared with the old construction and alsoproduces a burner which will work successfully and quickly in thecoldest climate, which has been an objectionable feature of the ordinaryburner constructed in the manner hereinbefore explained.

\Vhile I here show the subfire A formed directly in the central tube 3and having the central tube 3 forming a part of the means for conductingheat therefrom and whileI show the usual heat-conducting tube 5 alsoforming a part of the conducting passageway for the heat from thesubfire to the evaporator, it will be readily understood that thisconstruction can be modified and changed without departing from thespirit and scope of my inventionpvhich is, broadly considered, the useof a subfire which furnishes heat that is directly conducted to theevaporator for the purposes hereinbefore explained.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. A burner of the character described including a main burner, anevaporator connected therewith, and a subburner communicating with andfurnishing Warm air to the evaporator.

2. A burner of the character described, including a main burner, anevaporator connected therewith, means at the upper portion of the burnerfor heating air, an air-conducting tube connecting the said means withthe evaporator, and a subburner having a passage-way connecting it withthe said hot-airconducting tube.

3. A burner of the character described including a main burner havingacentral tube, an evaporator operatively connected with the main burner,the main burner provided with means for heating air, a tube connectingthe said air-heating means with the evaporator, a subburner formed inthe central tube of the main burner, and a passage-way connecting thesaid central tube with the said hot-airconducting tube.

4. A burner of the character described including a main burner having acentral tube, an evaporator operatively connected with the main burner,a hood located below the main burner and exterior thereof, a hot-airtube connecting the said hood with the evaporator, a su bburner locatedwithin the central tube, and a laterally extending tube passing throughthe said hood portion and connecting the hot-air-conducting tube and thesaid central burner-tube.

5. A burner of the character described, including a main burner, anevaporator connected therewith, the main burner having a central tubeprovided with a subburner, and an air-conducting tube connecting thesaid central tube with the evaporator.

6. A burner of the character described including a main burner, anevaporator, connected therewith, and a subburner located at a pointbetween the main burner and the evaporator, the subburner having ahot-air passage-way in communication with and supplying warm air to theevaporator.

7. A burner of the character described, including a main burner, anevaporator connected therewith, and a subburner having a hot-airpassage-way connecting it with the evaporator and furnishing warm airthereto.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

ATWELL J. BLACKFORD. Witnesses:

HUGH J. MCBRIDE, E. A. SCHNEIDER.

